3Com 8807 Configuration Manual page 153

Configuration procedure
1 Configurations on Switch A
# MST region
<SW8800> system-view
[SW8800] stp region-configuration
[3Com-mst-region] region-name example
[3Com-mst-region] instance 1 vlan 10
[3Com-mst-region] instance 3 vlan 30
[3Com-mst-region] instance 4 vlan 40
[3Com-mst-region] revision-level 0
# Manually activate MST region configuration.
[3Com-mst-region] active region-configuration
# Specify Switch A as the root of instance 1
[SW8800] stp instance 1 root primary
2 Configurations on Switch B
# MST region.
[SW8800] stp region-configuration
[3Com-mst-region] region-name example
[3Com-mst-region] instance 1 vlan 10
[3Com-mst-region] instance 3 vlan 30
[3Com-mst-region] instance 4 vlan 40
[3Com-mst-region] revision-level 0
# Manually activate MST region configuration.
[3Com-mst-region] active region-configuration
# Specify Switch B as the root of instance 3
[SW8800] stp instance 3 root primary
3 Configurations on Switch C
# MST region.
[SW8800] stp region-configuration
[3Com-mst-region] region-name example
[3Com-mst-region] instance 1 vlan 10
[3Com-mst-region] instance 3 vlan 30
[3Com-mst-region] instance 4 vlan 40
[3Com-mst-region] revision-level 0
# Manually activate MST region configuration.
[3Com-mst-region] active region-configuration
# Specify Switch C as the root of instance 4.
[SW8800] stp instance 4 root primary
Typical MSTP Configuration Example 153